T1 Hyperintense Parenchymal Lesion(s) Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Mineral Deposition Physiologic Calcification Trace Element Deposition MR Artifacts, Flow-Related Intracerebral Hematoma (Late Subacute) Less Common Multiple Sclerosis…
Multiple Brain Hyperintensities (T2/FLAIR), Rare But Important Gary M. Nesbit, MD DIFFERENTIAL DIAGNOSIS Rare but Important CADASIL Neurosarcoid Hashimoto Encephalopathy Granulomatous Angiitis Lyme Disease West Nile Encephalitis Wegener Granulomatosis, Brain…
T1/T2 Isointense Parenchymal Lesions Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Cerebral Ischemia-Infarction, Hyperacute Intracerebral Hematoma (Hyperacute) Capillary Telangiectasia Developmental Venous Anomaly Meningioma Less Common Metastases, Parenchymal Lymphoma, Primary…
Solitary Hypodense Parenchymal Lesion Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Cerebral Contusion Cerebral Ischemia-Infarction, Acute Cerebral Infarction, Subacute Cerebral Infarction, Chronic Glioblastoma Multiforme Anaplastic Astrocytoma Metastasis Oligodendroglioma Less…
FLAIR Hyperintense CSF Bronwyn E. Hamilton, MD DIFFERENTIAL DIAGNOSIS Common Subarachnoid Hemorrhage, NOS Intraventricular Hemorrhage Meningitis MR Artifacts, Magnetic Susceptibility MR Artifacts, Flow-Related MR Artifacts, Patient-Related Metastases, Meningeal Ventriculitis Less…
Hypodense Extra-Axial Mass(es) Bronwyn E. Hamilton, MD DIFFERENTIAL DIAGNOSIS Common Arachnoid Cyst Subdural Hematoma, Chronic Post-Operative Epidural Fluid, Effusion, Fat, or Air Pneumocephalus Less Common Neurocysticercosis Lipoma Pineal Cyst Schwannoma…
Ring-Enhancing Lesion, Multiple Yoshimi Anzai, MD, MPH Judy Tan, MD DIFFERENTIAL DIAGNOSIS Common Metastases Parenchymal Abscess Multiple Sclerosis ADEM Neurocysticercosis Less Common Tuberculosis Opportunistic Infection, AIDS Lymphoma, Primary CNS Radiation…
Multiple Parenchymal Calcifications Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Normal Neurocysticercosis Cavernous Malformation (Multiple) Less Common Tuberculosis Tuberous Sclerosis Complex Sturge-Weber Syndrome Metastases, Parenchymal Rare but Important Remote…
Enhancing Cranial Nerve(s) Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Metastases Neurofibromatosis Type 2 Neurofibromatosis Type 1 Plexiform Neurofibroma Optic Nerve Glioma Multiple Sclerosis Optic Neuritis Less Common Viral,…
T2 Hypointense Extra-Axial Lesions Bronwyn E. Hamilton, MD DIFFERENTIAL DIAGNOSIS Common MR Artifacts, Flow-Related MR Artifacts, Magnetic Susceptibility Pneumocephalus Physiologic Calcification, Dura Meningioma Metastases, Skull and Meningeal Schwannoma Less Common…
